A quantity of 6.732 g of an organic compound is dissolved in water to make 270.0...

A quantity of 6.732 g of an organic compound is dissolved in water to make 270.0 ml of solution. The solution has an osmotic pressure of 1.43 atm at 27 C. The analysis of this compound shows that it contains 41.8% C, 4.7% percent H, 37.3% O, and 16.3% N. Calculate the molecular formula of this compound

Expert Solution

queen_honey_blossom answered 1 year ago

A 10.0 mg sample of a nonvolatile organic compound is dissolved in 1.0 g of camphor,...

A 10.0 mg sample of a nonvolatile organic compound is dissolved in 1.0 g of camphor, resulting in a depression of the freezing point of 1.33 K. (You will be required to look some things up for this problem.) Calculate the molar mass of the organic solute. Calculate the vapor pressure of camphor over the solution.

An unknown compound (152 mg) was dissolved in water to make 75.0 mL of solution. The...

An unknown compound (152 mg) was dissolved in water to make 75.0 mL of solution. The solution did not conduct electricity and had an osmotic pressure of 0.328 atm at 27°C. Elemental analysis revealed the substance to be 78.90% C, 10.59% H, and 10.51% O. Determine the molecular formula of this compound by adding the missing subscripts.

An unknown nonelectrolyte and nonvolatile compound is dissolved in enough pure water to make 348ml of...

An unknown nonelectrolyte and nonvolatile compound is dissolved in enough pure water to make 348ml of solution.The vapor pressure above the solution drops from 198.7mbar to 196.7mbar. When 100g of the compound is dissolved at constant temperature.Determine the molar mass of the unknown compound. Assume no change in volume occurs upon dissolution. The answer is 509 g/mol Why?

The ionic compound, (NH4)2SO4, will fully dissolve in water. If 19.90 g is dissolved in 482.0...

The ionic compound, (NH4)2SO4, will fully dissolve in water. If 19.90 g is dissolved in 482.0 mL water, find the following ion concentrations. The concentration of the NH4+ is: The concentration of the SO42- is:

When 2.13 g of a nonelectrolyte solute is dissolved in water to make 395 mL of...

When 2.13 g of a nonelectrolyte solute is dissolved in water to make 395 mL of solution at 21 °C, the solution exerts an osmotic pressure of 959 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is the molar mass of the solution?

Consider a sample that has 121.6 g of K2SO4 dissolved in water to make a solution...

Consider a sample that has 121.6 g of K2SO4 dissolved in water to make a solution that is 1.31 L. When responding, please only input your numeric value with three significant figures. No units. 1). What is the molarity of the compound in this sample? 2). What is the molality of the compound in this sample? Density of the solution is 1.06 g/mL. 3). Based on the dissociation reaction for K2SO4, determine the Van’t Hoff Factor (i). 4). What is...

A.) 0.85 g of hydrogen chloride (HCl) is dissolved in water to make 8.0 L of...

A.) 0.85 g of hydrogen chloride (HCl) is dissolved in water to make 8.0 L of solution. What is the pH of the resulting hydrochloric acid solution? B.) 0.50 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 6.5 L of solution. What is the pH of this solution?

When 2.14 g of a nonelectrolyte solute is dissolved in water to make 165 mL of...

When 2.14 g of a nonelectrolyte solute is dissolved in water to make 165 mL of solution at 22 °C, the solution exerts an osmotic pressure of 821 torr.

If 4.90 g of Na2CO3 is dissolved in enough water to make 250. mL of solution,...

If 4.90 g of Na2CO3 is dissolved in enough water to make 250. mL of solution, what is the molar concentration of the sodium carbonate? Molar concentration of Na2CO3 = ______M What are the molar concentrations of the Na+ and CO32- ions? Molar concentration of Na+ = ______M Molar concentration of CO32- = _______M

A solution contains 12.00 g of unknown compound (non-electrolyte) dissolved in 50.0 mL of water. (Assume...

A solution contains 12.00 g of unknown compound (non-electrolyte) dissolved in 50.0 mL of water. (Assume a density of 1.00 g/mL for water.) The freezing point of the solution is -4.95 ∘C. The mass percent composition of the compound is 53.31% C, 11.19% H, and the rest is O. Part A What is the molecular formula of the compound? Express your answer as a molecular formula.

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